Dividing Larger Dividends Chapter 4 By C Mayfield

Dividing Larger Dividends Chapter 4 By C. Mayfield ©Oct. 13, 2009

Don’t Forget DMSBR R S D Dad Divide Sister M Subtract B Mom Multiply Brother Rover Repeat or Remainder Bring Down

• Look at the divisor (number outside) 25 5 97 • Look at the dividend (number inside) • Look at each digit in the dividend until you find one that the divisor can go into. • Put a sticky note behind the first number 5 so you only see 5. You must ask yourself if 25 can go into 5. NO, 5 is too small )

• Move the sticky note over to the next number. • Then ask if 25 can go into 59. yes • Using multiplication-you multiply the divisor (25) by a number to get close to 59 but not over. (Think of 25 and 50 -they are compatible numbers. ) 25) 5 97 25 x 2 50

• Write the number you multiplied by (2) over the last number in front of the sticky note. • Write the answer (50) under 59. 2 25) 5 97 50 9 • Subtract 59 -50= 9 25 x 2 50

• Slide the sticky note over until you see the next number: 7. Bring it down. 2 25) 5 97 50 97 • Now you have 97. • Find out how many times 25 will go into 25 97. x 4 • Multiply numbers 100 by 25 until you find an answer that is close to 97 but not Hint: Think of 97 being close to 100 (25 x 4=100). over. too big

• The number you are looking for is 3. • Write the answer to the 25 multiplication problem 25 x 3=75 under 97. • Write the 3 over the 7. • Subtract. • Check to see if there is another number to bring 25 x 3 down. If not, check the 75 final answer 22. It must be smaller than the 25 divisor (25). The x 4 remainder is 22. 100 2 3 r 22 ) 5 97 50 97 75 22

√ your work!!!! • Multiply the divisor by the quotient. 1 1 25 23 75 500 575 Add the remainder. 575 22 597 This is your original dividend.